"This weekend is the Christmas for myself and a lot of others at Historic Philadelphia," said Joseph Nevin, an employee at Historic Philadelphia who was re-enacting the role of Continental Army Corporal Joseph Plumb Martin.

MARK C. PSORAS/THE REPORTER A re-enactor portraying General Washington admonishes a traitor in the ranks during ‘Valley Forge Secrets and Spies’ adventure tour at Valley Forge National Park on Saturday.